a version of something, like the story of Narsissus, if you look up videos for it on yt, you'll find a bunch of different people telling it in different ways, but still getting the point across.
or it could be a size.
or it could be a material used to create something, like in a painting, the mediums would be paint, and maybe sharpie if you outlined what you painted.
I can’t see the picture of the painting and its artist. But the purpose of equestrian portraits in history is that they demonstrate elements kept on horsebacks.
